As temperatures outside dipped to well below freezing, and as blizzards pounded the Antarctic research station, German scientists were carefully tending to a remarkable veggie garden—one requiring no soil or natural sunlight. The success of their first harvest, which produced vibrant-looking lettuce, radishes, cucumbers, and other treats, represents a promising test run for similar greenhouses that could one day be built on Mars—or beyond.

The previous record holder for the farthest picture was NASA’s Voyager 1. The probe, which flew by Jupiter and Saturn before heading out to interstellar space, captured a distant picture of Earth on February 14th, 1990, when Voyager 1 was 3.75 billion miles away. Known as the “Pale Blue Dot,” it was the last picture Voyager 1 took before its cameras were turned off shortly afterward.

Voyager 1’s record remained unbroken for 27 years until December 5th, 2017, when New Horizons snapped its photo of the cluster at a distance of 3.79 billion miles from Earth. Then, the spacecraft broke its own record again two hours later, when it took photos of two objects in the Kuiper Belt, the large cloud of icy objects at the edge of the Solar System that New Horizons is currently traversing.

At present, the Voyager 1 spacecraft is 21 billion kilometers from Earth, or about 141 times the distance between the Earth and Sun. It has, in fact, moved beyond our Solar System into interstellar space. However, we can still communicate with Voyager across that distance. This week, the scientists and engineers on the Voyager team did something very special. They commanded the spacecraft to fire a set of four trajectory thrusters for the first time in 37 years to determine their ability to orient the spacecraft using 10-millisecond pulses.

After several years of secrecy, a company called Moon Express revealed the scope of its ambitions on Wednesday. And they are considerable. The privately held company released plans for a single, modular spacecraft that can be combined to form successfully larger and more capable vehicles. Ultimately the company plans to establish a lunar outpost in 2020 and set up commercial operations on the Moon. Perhaps most intriguingly, Moon Express says it is self-funded to begin bringing kilograms of lunar rocks back to Earth within about three years.